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Authentication

References

Authorization - determine what users can and cannot access with each request. Authentication - first, determine who that user is

Process

1. User provides a set of credentials to log in through a client application, like a ReactJS interface.
2. The client application sends the credentials to an authentication server that validates them.

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React-Redux Cheatsheet

What is React-Redux?

A small library that binds Redux to React components.

Methods

1. <Provider> component - provides Redux store to all child components so we don't need to pass it explicitly to all components

2. mapStateToProps(state) - connects the store to React Props and passes state that's needed in a particular component

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Redux Cheatsheet

What is Redux?

• Redux is predictable state container for JS apps and used for the entire app's state management

3 Principles of Redux

1. Single Source of Truth - state of entire app is stored in an object/state tree within a single store; makes it easy to keep track of changes over time and debug; all components' state is stored in store and receive updates from the store itself
2. State is Read-Only - the only way to change state is trigger an action (a plain object describing the change);
3. Changes are made with Pure Functions - to specify how state tree is transformed by actions, redux uses pure functions (whose return value depends solely on the values of their arguments)

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Linked Lists

What is a Linked List?

A data structure comprised of nodes which contain a data element and a pointer to the next node. Lists can be singly-linked or doublely-linked (nodes have previous and next pointers).

Time Complexity

• Insertion - O(1)
• Search - O(n)

Example Code

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Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites